[clang-tidy] Adding a new modernize use nodiscard checker

Summary: Adds a checker to clang-tidy to warn when a non void const member function, taking only parameters passed by value or const reference could be marked as '[[nodiscard]]'

Patch by MyDeveloperDay.

Reviewers: alexfh, stephenkelly, curdeius, aaron.ballman, hokein, JonasToth

Reviewed By: curdeius, JonasToth

Subscribers: Eugene.Zelenko, lefticus, lebedev.ri, mgorny, xazax.hun, cfe-commits

Tags: #clang-tools-extra

Differential Revision: https://reviews.llvm.org/D55433

llvm-svn: 350760

1 files changed, 3 insertions, 0 deletions

diff --git a/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp b/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp
index 6bad6cbefa9..fcf535b76ae 100644
--- a/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp
+++ b/clang-tools-extra/clang-tidy/modernize/ModernizeTidyModule.cpp
@@ -32,6 +32,7 @@
 #include "UseEmplaceCheck.h"
 #include "UseEqualsDefaultCheck.h"
 #include "UseEqualsDeleteCheck.h"
+#include "UseNodiscardCheck.h"
 #include "UseNoexceptCheck.h"
 #include "UseNullptrCheck.h"
 #include "UseOverrideCheck.h"
@@ -82,6 +83,8 @@ public:
     CheckFactories.registerCheck<UseEqualsDefaultCheck>("modernize-use-equals-default");
     CheckFactories.registerCheck<UseEqualsDeleteCheck>(
         "modernize-use-equals-delete");
+    CheckFactories.registerCheck<UseNodiscardCheck>(
+        "modernize-use-nodiscard");
     CheckFactories.registerCheck<UseNoexceptCheck>("modernize-use-noexcept");
     CheckFactories.registerCheck<UseNullptrCheck>("modernize-use-nullptr");
     CheckFactories.registerCheck<UseOverrideCheck>("modernize-use-override");